Gen III Horsepower.

[Redfish Hunter]

Oh dammit. RJAMT your bike is cool because it looks like mine. Not as good, but close.

Since we are obliged to quote numbers or else it is not Real Data:

Motorcyclist, June 2005: 126.8 HP @ 8000RPM, 90 lb ft @ 7000RPM

Motorcyclist article Rapid Transit Authority from 2007: 127.2 @ 7900, 89.6 @ 6800

I do not know who I am supposed to brag to about those numbers. Maybe I will mention it to the cashier at the grocery store. Or the door greeter at WalMart. I may even mention it to Mrs. Redfish.

 

[wheatonFJR]

 

[bergmen]

Early road tests of the first Gen III model (2013) reported a slight increase in the horsepower at the crank from 145hp to 147hp.Dan

So, how can a road test give you a measure of crank horse-power? Enquiring minds want to know.

From a November 8, 2012 review at Motorcycle.com (https://www.motorcycle.com/manufacturer/yamaha/2013-yamaha-fjr1300a-review-91462.html):

"Engine internals are largely the same as before, with a few notable changes. The engine now sees sleeveless cylinders and low-friction piston rings. EFI mapping has been tweaked, and the exhaust now sees a reduction to two catalyzers from four, located just underneath the engine, helping weight centralization. These minor changes account for a 3-hp bump according to Yamaha."

Not sure how credible this is, I thought all FJRs had "sleeveless cylinders" with hard plating instead of liners.

Dan

 

[Pterodactyl]

This sorta data is best saved for impressing LEOs during traffic stops.

 

[lele]

with the ECU tweaked and two less catalyzers I think yamaha used some wolkswagen secret tecnology

 

[Laser Dude]

I had a Harley rider tell me that my shaft drive was horribly inefficient. He told me that I lose 25% of my horsepower because of it. My reply was "Well, I started with 145, so 25% off that still leaves me plenty"

That's been my only use of the number.

 

[ionbeam]

A chain drive will cost ya about 5% - 6% power loss. The FJR shaft drive runs around 16% - 17% power loss, a little more than a typical motorcycle shaft drive. Regardless of Gen. Along with greater power loss you also get more unsprung weight. That's the cost to have clean hands, maintenance free trips and no reoccurring parts replacement.

 

[wheatonFJR]

...That's the cost to have clean hands, maintenance free trips and no reoccurring parts replacement.

I'll take it.